X-Git-Url: https://wimlib.net/git/?p=wimlib;a=blobdiff_plain;f=include%2Fwimlib%2Futil.h;h=8e9d695ed090a1cbd35ad75e37da425be7663a7b;hp=646fdafc768b6b98560d8364eee236e8bdbe5ed9;hb=26c7f8bb32e4a32001d409f1693e0df016270ed5;hpb=01c6f902b2a48a33af3f94e29791f85c68df91d0

diff --git a/include/wimlib/util.h b/include/wimlib/util.h
index 646fdafc..8e9d695e 100644
--- a/include/wimlib/util.h
+++ b/include/wimlib/util.h
@@ -49,6 +49,10 @@
 
 #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
 
+/* Maximum number of array elements to allocate on the stack (used in various
+ * places when large temporary buffers are needed).  */
+#define STACK_MAX 32768
+
 #ifdef ENABLE_CUSTOM_MEMORY_ALLOCATOR
 extern void *
 wimlib_malloc(size_t) _malloc_attribute;
@@ -90,6 +94,11 @@ wimlib_strdup(const char *str) _malloc_attribute;
 extern void *
 memdup(const void *mem, size_t size) _malloc_attribute;
 
+#ifndef HAVE_MEMPCPY
+extern void *
+mempcpy(void *dst, const void *src, size_t n);
+#endif
+
 /* util.c */
 extern void
 randomize_byte_array(u8 *p, size_t n);
@@ -116,12 +125,30 @@ bsr32(u32 n)
 #endif
 }
 
+static inline bool
+is_power_of_2(unsigned long n)
+{
+	return (n != 0 && (n & (n - 1)) == 0);
+
+}
+
 static inline u64
 hash_u64(u64 n)
 {
 	return n * 0x9e37fffffffc0001ULL;
 }
 
+static inline int
+cmp_u64(u64 n1, u64 n2)
+{
+	if (n1 < n2)
+		return -1;
+	else if (n1 > n2)
+		return 1;
+	else
+		return 0;
+}
+
 /* is_any_path_separator() - characters treated as path separators in WIM path
  * specifications and capture configuration files (the former will be translated
  * to WIM_PATH_SEPARATOR; the latter will be translated to
@@ -143,7 +170,6 @@ hash_u64(u64 n)
 #  define is_any_path_separator(c) ((c) == '/' || (c) == '\\')
 #endif
 
-#define WIM_PATH_SEPARATOR OS_PREFERRED_PATH_SEPARATOR
-
+#define WIM_PATH_SEPARATOR WIMLIB_WIM_PATH_SEPARATOR
 
 #endif /* _WIMLIB_UTIL_H */